After some time, burning with a desire of attaining to the perfection of Christian virtue, he passed over to Wales, and in Cardiganshire founded a monastery called Llan-patern-vaur, or the church of the great Paternus. He made a visit to his father in Ireland, but being called back to his monastery of Marnes, he soon after retired with St. Scubilion, a monk of that house, and embraced an austere anchoretical life in the forests of Scicy, in the diocese of Coutances, near the sea, having first obtained leave of the bishop and of the lord of the place. This desert, which was then of great extent, but which has been since gradually gained upon by the sea, was anciently in great request among the Druids. St. Paternus converted to the faith the idolaters of that and many neighboring parts, as far as Bayeux, and prevailed upon them to demolish a pagan temple in this desert, which was held in great veneration by the ancient Gauls. In his old age he was consecrated Bishop of Avranches by Germanus, Bishop of Rouen. Some false brethren having created a division of opinion among the bishops of the province with respect to St. Paternus, he preferred retiring rather than to afford any ground for dissension, and, after governing his diocese for thirteen years, he withdrew to a solitude in France, and there ended his days about the year 550.
Feast Day of Saint Paternus
The Feast Day of Saint Paternus is April 15. The origin of Feast Days: most saints have specially designated feast days and are associated with a specific day of the year and these are referred to as the saint's feast day. The feast days first arose from the very early Christian custom of the annual commemoration of martyrs on the dates of their deaths at the same time celebrating their birth into heaven.